根叶(根叶) (1).植物的根与叶。南朝 梁 江淹 《莲花赋》:“若其华实各名,根叶异辞,既号芙蕖,亦曰泽芝。” (2).喻事事物的各个方面。南朝 梁 刘勰 《文心雕龙·体性》:“文辞根叶,苑囿其中矣。”
蛇根叶属 Ophiorrhiziphyllon Kurz ; Ophiorrhiziphyllon
根叶藻科 Rhizophyllidaceae
大根叶 leaf of radish
外包枞树形叶根叶片 blade with external fir-tree root
阶梯形叶根叶片 blade with stepped root
落叶归根 Getting Home ; Falling Leaf Returns to Roots
根叶秋海棠 Begonia rhizocarpa Otto et Drude
外包倒T型叶根叶片 blade with external inverted-T-root
叶甫根尼·普鲁申科 Evgeni Plushenko
叶夫根尼亚·迪莫娃 Evgenia Dimova
那么这些细胞是如何分化并形成像根、茎、叶和果实那样不同的结构的呢?
How then can these cells differentiate and form structures as different as roots, stems, leaves, and fruits?
植物的祖先是进行光合作用的单细胞生物,由此产生的植物可能缺乏真正的根、茎、叶和复杂的生殖结构,如花朵。
The ancestors of plants were photosynthetic single-celled organisms that gave rise to plants presumably lacked true roots, stems, leaves, and complex reproductive structures such as flowers.
And so both of these lobes together constitute a pi bond.
上下两片叶一起组成了一根π键。
应用推荐